#ifndef OPERATORSUBSTRACT_H
#define OPERATORSUBSTRACT_H

#include "IOperator.h"


class OperatorSubstract : public IOperator
{
    public:

        OperatorSubstract();
        ~OperatorSubstract();

        double exec(double, double) const;
        std::string str() const;
};

#endif // OPERATORSUBSTRACT_H
